Re: [Xen-devel] [PATCH v2] xen: arm64: Add support for Renesas RCar Gen3 H3 Salvator-X platform

[Dirk Behme <dirk.behme@xxxxxxxxxxxx>]

On 05.07.2016 14:45, Julien Grall wrote:
> On 05/07/16 13:09, Dirk Behme wrote:
> > Hi Julien,
> >
> > On 05.07.2016 13:39, Julien Grall wrote:
> > > Hi Dirk,
> > >
> > > On 05/07/16 07:37, Dirk Behme wrote:
> > > > Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
> > > This patch looks good to me, however I would like to see the
> > > documentation on the wiki page (see [1]) before giving any formal ack.
> >
> > Ok, many thanks for your review!
> >
> > Yes, I understood that something more is needed.
> >
> >
> > I just wonder if we keep the patch on the mailing list for a moment.
> > With this it's publically available and we can see how's the public
> > interest for this board.
> >
> > Additionally, getting Xen running on this board and describe all this in
> > the wiki isn't that easy. You either need to modify the flashed
> > firmware. Or, like me, load everything via a JTAG debugger ...
> Can you details why you think it is not easy? Why do you have to modify
> the firmware? Is it because it does not boot the hypervisor in EL2?

The board boots via ATF, which starts U-Boot in EL1, then. You have to 
find a way to load Xen into memory (e.g. U-Boot TFTP) and then switch to 
EL2 to start Xen.
To give a pointer, I would recommend

https://github.com/ARM-software/tf-issues/issues/353

Best regards

Dirk



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